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參數(shù)資料
| 型號(hào)： | AD9852ASQ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | XO, clock |
| 英文描述： | CMOS 300 MHz Complete-DDS |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 30 MHz, PQFP80 |
| 封裝： | MS-026-BEC, LQFP-80 |
| 文件頁數(shù)： | 5/42頁 |
| 文件大小： | 424K |
| 代理商： | AD9852ASQ |
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AD9852
–5–
REV. 0
PIN FUNCTION DESCRIPTIONS
Pin
No.
1–8
9, 10, 23,
24, 25, 73,
74, 79, 80
11, 12, 26, DGND
27, 28, 72,
75, 76, 77,
78
13, 35, 57 NC
58, 63
14–19
Pin Name
D7–D0
DVDD
Function
Eight-Bit Bidirectional Parallel Programming Data Inputs. Used only in parallel programming mode.
Connections for the Digital Circuitry Supply Voltage. Nominally 3.3 V more positive than AGND
and DGND.
Connections for Digital Circuitry Ground Return. Same potential as AGND.
No Internal Connection.
A5–A0
Six-Bit Parallel Address Inputs for Program Registers. Used only in parallel programming mode. A0, A1,
and A2 have a second function when the serial programming mode is selected. See immediately below.
Allows a RESET of the serial communications bus that is unresponsive due to improper program-
ming protocol. Resetting the serial bus in this manner does not affect previous programming nor
does it invoke the “default” programming values seen in the Table V. Active HIGH.
Unidirectional Serial Data Output for Use in 3-Wire Serial Communication Mode.
Bidirectional Serial Data Input/Output for Use in 2-Wire Serial Communication Mode.
Bidirectional Frequency Update Signal. Direction is selected in control register. If selected as an input,
a rising edge will transfer the contents of the programming registers to the internal works of the IC for
processing. If I/O UD is selected as an output, an output pulse (low to high) of eight system clock cycle
duration indicates that an internal frequency update has occurred.
Write Parallel Data to Programming Registers. Shared function with SCLK. Serial clock signal
associated with the serial programming bus. Data is registered on the rising edge. This pin is shared with
WRB when the parallel mode is selected.
Read Parallel Data from Programming Registers. Shared function with CSB. Chip-select signal
associated with the serial programming bus. Active LOW. This pin is shared with RDB when
the parallel mode is selected.
Multifunction Pin According to the Mode of Operation Selected in the Programming Control Register.
If in the FSK mode logic low selects F1, logic high selects F2. If in the BPSK mode, logic low selects
Phase 1, logic high selects Phase 2. If in the Chirp mode, logic high engages the HOLD function
causing the frequency accumulator to halt at its current location. To resume or commence Chirp,
logic low is asserted.
Must First Be Selected in the Programming Control Register to Function. A logic high will cause the
cosine DAC output to ramp-up from zero-scale to full-scale amplitude at a preprogrammed rate.
Logic low causes the full-scale output to ramp-down to zero-scale at the preprogrammed rate.
Connections for the Analog Circuitry Supply Voltage. Nominally 3.3 V more positive than AGND
and DGND.
(17)
A2/IO RESET
(18)
(19)
20
A1/SDO
A0/SDIO
I/O UD
21
WRB/SCLK
22
RDB/CSB
29
FSK/BPSK/
HOLD
30
SHAPED
KEYING
31, 32, 37 AVDD
38, 44, 50,
54, 60, 65
33, 34, 39, AGND
40, 41, 45,
46, 47, 53,
59, 62, 66,
67
36
Connections for Analog Circuitry Ground Return. Same potential as DGND.
VOUT
Internal High-Speed Comparator’s Noninverted Output Pin. Designed to drive 10 dBm to 50
load
as well as standard CMOS logic levels.
Voltage Input Positive. The internal high-speed comparator’s noninverting input.
Voltage Input Negative. The internal high-speed comparator’s inverting input.
Unipolar Current Output of the Cosine DAC.
Complementary Unipolar Current Output of the Cosine DAC.
Complementary Unipolar Current Output of the Auxiliary DAC.
Unipolar Current Output of the Auxiliary DAC.
42
43
48
49
51
52
VINP
VINN
IOUT1
IOUT1B
IOUT2B
IOUT2
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| AD9852AST | CMOS 300 MHz Complete-DDS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9852ASQZ | 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 300MHz 2-DAC 12-Bit Parallel/Serial 80-Pin LQFP |
| AD9852AST | 制造商:Analog Devices 功能描述:Direct Digital Synthesizer 300MHz 2-DAC 12-Bit Parallel/Serial 80-Pin LQFP Tray 制造商:Rochester Electronics LLC 功能描述:200 MHZ C-DDS SYNTHESIZER - Bulk 制造商:Analog Devices 功能描述:IC DDS SYNTHESIZER |
| AD9852ASTZ | 功能描述:IC DDS SYNTHESIZER CMOS 80-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數(shù)字合成 (DDS) 系列:- 產(chǎn)品變化通告:Product Discontinuance 27/Oct/2011 標(biāo)準(zhǔn)包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調(diào)節(jié)字寬（位）:32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD9852ASTZ | 制造商:Analog Devices 功能描述:IC DDS 100MHZ LQFP-80 |
| AD9852ASTZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS 300 MSPS Complete DDS |
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